<template>
    <div>
<!--      面包屑导航区域-->
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
      </el-breadcrumb>
<!--      卡片视图区域-->
      <el-card>
<!--          搜索与添加区域-->

        <el-row :gutter="20">
          <el-col :span="8">
            <el-input placeholder="请输入内容" v-model="queryUser.query" clearable @clear="getUserList">
              <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
          </el-col>
        </el-row>

<!--        用户列表区域-->
        <el-table :data="userList" border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column label="姓名" prop="username"></el-table-column>
          <el-table-column label="邮箱" prop="email"></el-table-column>
          <el-table-column label="电话" prop="mobile"></el-table-column>
          <el-table-column label="角色" prop="role_name"></el-table-column>
          <el-table-column label="状态">
            <template slot-scope="scope">
              <el-switch v-model="scope.row.mg_state" @change="userStatusChanged(scope.row)"></el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="180px">
            <template  slot-scope="scope">
              <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
              <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
              <el-tooltip effect="dark" content="分配角色"  placement="top" :enterable="false">
                <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
              </el-tooltip>

            </template>
          </el-table-column>
        </el-table>

<!--        分页区域-->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryUser.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryUser.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
        </el-pagination>
      </el-card>

<!--      添加用户的对话框-->
      <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
      @close="addDialogClosed">
<!--        内容主体区域-->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机号" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
<!--        底部按钮区域-->
        <span slot="footer" class="dialog-footer">
           <el-button @click="addDialogVisible = false">取 消</el-button>
           <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
      </el-dialog>
<!--      修改用户信息的对话框-->
      <el-dialog
        title="修改用户信息"
        :visible.sync="editDialogVisible"
        width="50%"
      @close="editDialogClosed">
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机号" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
           <el-button type="primary" @click="editUserInfo">确 定</el-button>
         </span>
      </el-dialog>

<!--      分配角色的对话框-->
      <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="30%"
      >
       <div>
         <p>当前用户:{{userInfo.username}}</p>
         <p>当前角色:{{userInfo.role_name}}</p>
         <p>分配新角色:
           <el-select v-model="selectedRoleId" placeholder="请选择">
             <el-option
               v-for="item in rolesList"
               :key="item.id"
               :label="item.roleName"
               :value="item.id">
             </el-option>
           </el-select>
         </p>
       </div>
        <span slot="footer" class="dialog-footer">
           <el-button @click="setRoleDialogVisible = false">取 消</el-button>
           <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
</div>
</template>

<script>
  export default {
    data (){
      //验证手机号的规则
      var checkMobile=(rule,value,callback)=>{
        //验证手机号的正则表达式
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
        if(regMobile.test(value)){
          return callback()
        }
        callback(new Error('请输入合法的手机号！'))
      }
      return {
        //获取用户的参数对象
        queryUser:{
          query:'',
          pagenum:1,
          pagesize:2
        },
        userList:[],
        total:0,
        //控制 添加用户弹出框的 显示与隐藏
        addDialogVisible:false,
        //添加用户的表单数据
        addForm:{
          username:'',
          password:'',
          email:'',
          mobile:''
        },
        //添加用户表单的验证规则对象
        addFormRules:{
          username:[
            { required: true, message: '请输入用户名', trigger: 'blur' },
            { min: 3, max: 10, message: '用户名的长度在 3 到 10 个字符', trigger: 'blur' }
          ],
          password:[
            { required: true, message: '请输入用户密码', trigger: 'blur' },
            { min: 6, max: 12, message: '长度在 6 到 12 个字符', trigger: 'blur' }
          ],
          email:[
            { required: true, message: '请输入邮箱地址', trigger: 'blur' },
            { type: 'email', message: '请输入正确的邮箱地址', trigger: ['blur', 'change'] }
          ],
          mobile:[
            { required: true, message: '请输入手机号码', trigger: 'blur' },
            { validator:checkMobile,trigger: 'blur'}
          ]
        },
        //控制 修改用户信息对话框的显示与隐藏
        editDialogVisible:false,
        //查询需要修改的用户信息对象
        editForm:{},
        //修改表单的验证规则对象
        editFormRules:{
          email:[
            { required: true, message: '请输入邮箱地址', trigger: 'blur' },
            { type: 'email', message: '请输入正确的邮箱地址', trigger: ['blur', 'change'] }
          ],
          mobile:[
            { required: true, message: '请输入手机号码', trigger: 'blur' },
            { validator:checkMobile,trigger: 'blur'}
          ]
        },
        //分配角色对话框的显示与隐藏
        setRoleDialogVisible:false,
        //分配角色时获取到当前用户的信息
        userInfo:{},
        //所有角色的数据列表
        rolesList:[],
        //已选中的角色id值
        selectedRoleId:''
      }
    },
    created (){
      this.getUserList()
    },
    methods:{
      //获取用户列表
      async getUserList(){
        const {data:res} = await this.$http.get('users',{params:this.queryUser})
        if(res.meta.status!==200) return this.$message.error('获取用户列表失败！')
        this.userList=res.data.users
        this.total=res.data.total
        // console.log(res)
      },
      //监听pagesize事件的改变
       handleSizeChange(newSize){
        this.queryUser.pagesize=newSize
         this.getUserList()
       },
      //监听 页码值 的改变
      handleCurrentChange(newPage){
        this.queryUser.pagenum=newPage
        this.getUserList()
      },
      //监听switch开关状态的改变
      async userStatusChanged(userinfo){
        // console.log(userinfo)
        const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        // console.log(res)
        if(res.meta.status!==200){
          userinfo.mg_state=!userinfo.mg_state
          return this.$message.error('修改用户信息失败！')
        }
        this.$message.success('修改用户信息成功！')
      },
      //监听对话框的关闭
      addDialogClosed(){
        // console.log(this.$refs)
        this.$refs.addFormRef.resetFields()
      },
      //添加用户
      addUser(){
        //在真正添加用户之前，进行预效验
        this.$refs.addFormRef.validate(async valid=>{
          // console.log(valid)
          if(!valid) return
          //若果这个valid是true，那就会进行真正发起添加用户的网络请求
          const {data:res} = await this.$http.post('users',this.addForm)
          if(res.meta.status!==201){
            this.$message.error('添加用户失败！')
          }
          this.$message.success('添加用户成功！')
          //添加用户成功之后，需要关闭添加用户的对话框
          this.addDialogVisible=false
          //添加成功后，需要刷新用户列表，即重新获取用户数据
          this.getUserList()
        })
      },
      //显示修改用户信息的对话框
      async showEditDialog(id){
        this.editDialogVisible=true
        // console.log(id)
        const {data:res} = await this.$http.get('users/'+id)
        if(res.meta.status!==200) return this.$message.error('查询用户信息失败！')
        this.editForm=res.data
      },
      //监听修改信息对话框的关闭
      editDialogClosed(){
        this.$refs.editFormRef.resetFields()
      },
      //修改用户信息并提交
      editUserInfo(){
        //在向服务器提交之前，需要对表达那内容进行预验证
        this.$refs.editFormRef.validate(async valid=>{
          // console.log(valid)
          if(!valid) return
          //通过了，就发起修改用户信息的数据请求
          console.log(this.editForm)
          const {data:res} = await this.$http.put('users/'+this.editForm.id,{
            email:this.editForm.email,
            mobile:this.editForm.mobile
          })
          if(res.meta.status!==200){
            return this.$message.error('更新用户信息失败！')
          }
          //关闭对话框
          this.editDialogVisible=false
          //刷新数据列表
          this.getUserList()
          //提示修改用户信息成功
          this.$message.success('更新成功！')
        })
      },
      //删除用户信息
      async removeUserById(id){
        // console.log(id)
        //弹窗询问是否删除用户信息
        const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>{
          return err
        })
        //点击确认删除，返回值为字符串confirm
        //点击取消，则返回为字符串 cancel
        // console.log(confirmResult)
        if(confirmResult!=='confirm'){
          return this.$message.info('已取消删除操作')
        }
        // console.log('已删除')
        const { data:res } = await this.$http.delete('users/'+id)
        if(res.meta.status!==200) return this.$message.error('删除失败！')
        this.$message.success('删除成功！')
        this.getUserList()
      },
      //分配角色
      async setRole(userInfo){
        this.userInfo=userInfo
        //在战时对话框之前，获取角色列表
        const { data:res} = await this.$http.get('roles')
        if(res.meta.status!==200) return this.$message.error('请求角色列表失败！')
        this.rolesList=res.data
        this.setRoleDialogVisible=true
      },
      //分配选中的角色
      async saveRoleInfo(){
        if(!this.selectedRoleId){
          return this.$message.error('请选择需要分配的角色！')
        }
        const {data:res}=await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
        if(res.meta.status!==200) return this.$message.error('更新角色失败！')
        this.$message.success('更新角色成功！')

        this.getUserList()
        this.setRoleDialogVisible=false
      }
    }
  }
</script>

<style scoped>

</style>
